Numerical analysis on an OOK-NRZ visible light communication system based on a single white LED

An OOK-NRZ visible light communication （VLC） system is designed by using a single white LED and a 550 nm visible photodetector. The emitting model of the single LED is established, and the general expression of the detector＇s output signals under OOK modulation is deduced. With the selected LED, det...

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Bibliographic Details
Published inOptoelectronics letters Vol. 7; no. 5; pp. 376 - 379
Main Author 贾永坡 叶玮琳 田崇文 全相印 王嘉琪 宋占伟 郑传涛
Format Journal Article
LanguageEnglish
Published Heidelberg Tianjin University of Technology 01.09.2011
Subjects
Lasers
NRZ
OOK
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
优化设计
光通信系统
可见光通信
数值分析
白光LED
调制器
Communication Distance
Visible Light Communication
Single Lead
IEEE Photon
Coherent Demodulator
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Summary:An OOK-NRZ visible light communication （VLC） system is designed by using a single white LED and a 550 nm visible photodetector. The emitting model of the single LED is established, and the general expression of the detector＇s output signals under OOK modulation is deduced. With the selected LED, detector and other related parameters, the designed communication system is optimized and its performance is analyzed. The optimized communication distance between the LED and the detector is 0.54 m at the communication bit rate of 1 Mbit/s. With the best communication distance, when the signal-to-noise ratio （SNR） is larger than 6.5 dB, the bit error rate （BER） can drop to 10^-4. The analytical model and theory presented in this paper can be of certain practical meanings in the design of similar communication systems.
Bibliography:JIA Yong-po, YE Wei-lin, TIAN Chong-wen , QUAN Xiang-yin , WANG Jia-qi , SONG Zhan-wei , ZHENG Chuan-tao （State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012, China）
An OOK-NRZ visible light communication （VLC） system is designed by using a single white LED and a 550 nm visible photodetector. The emitting model of the single LED is established, and the general expression of the detector＇s output signals under OOK modulation is deduced. With the selected LED, detector and other related parameters, the designed communication system is optimized and its performance is analyzed. The optimized communication distance between the LED and the detector is 0.54 m at the communication bit rate of 1 Mbit/s. With the best communication distance, when the signal-to-noise ratio （SNR） is larger than 6.5 dB, the bit error rate （BER） can drop to 10^-4. The analytical model and theory presented in this paper can be of certain practical meanings in the design of similar communication systems.
12-1370/TN
ISSN:1673-1905
1993-5013
DOI:10.1007/s11801-011-1050-7